Fix unexpected blurry text caused by combination of skew and promotion

third_party/WebKit/Source/platform/transforms/TransformOperations.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 44 matching lines @@
 
   // Return true if any of the operation types are 3D operation types (even if
   // the values describe affine transforms)
   bool has3DOperation() const {
     for (unsigned i = 0; i < m_operations.size(); ++i)
       if (m_operations[i]->is3DOperation())
         return true;
     return false;
   }
 
+  bool hasSkew() const {
+    for (unsigned i = 0; i < m_operations.size(); ++i) {
+      if (m_operations[i]->isSkewOperation())
+        return true;
+    }
+    return false;
+  }
+
   bool dependsOnBoxSize() const {
     for (unsigned i = 0; i < m_operations.size(); ++i) {
       if (m_operations[i]->dependsOnBoxSize())
         return true;
     }
     return false;
   }
 
   bool operationsMatch(const TransformOperations&) const;
 
@@ skipping 24 matching lines @@
   TransformOperations add(const TransformOperations& addend) const;
   TransformOperations zoom(double factor) const;
 
  private:
   Vector<RefPtr<TransformOperation>> m_operations;
 };
 
 }  // namespace blink
 
 #endif  // TransformOperations_h